Name Size Creator Creation Date Labels Comment  
PDF File 2546365.pdf 319 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546365-A // Pneumatic operating clutch device // Leveridge Walter J. // Bell Telephone Labor Inc
PDF File 2546370.pdf 1.22 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546370-A // Azimuth indicating circuit // Jr. Bernard Ostendorf, ; Rea Wilton T. // Bell Telephone Labor Inc
PDF File 2546371.pdf 484 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546371-A // Generation of pulses of alternately opposite polarities // Peterson Eugene // Bell Telephone Labor Inc
PDF File 2546810.pdf 947 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546810-A // Tool for use in replacing insulators in switch banks // Anderson Fred A. // Bell Telephone Labor Inc
PDF File 2546814.pdf 1.40 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546814-A // Indicating apparatus // Augustadt Herbert W. // Bell Telephone Labor Inc
PDF File 2546818.pdf 557 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546818-A // Electric switch contact protection // Curtis Lavalette Stevenson // Bell Telephone Labor Inc
PDF File 2546819.pdf 633 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546819-A // Stepping failure indicator for sensing devices // Gooderham John W. // Bell Telephone Labor Inc
PDF File 2546821.pdf 251 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546821-A // Magnetic recorder and reproducer // Hansen Harry // Bell Telephone Labor Inc
PDF File 2546824.pdf 1.12 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546824-A // Electrical protective apparatus // Koliss Peter P. // Bell Telephone Labor Inc
PDF File 2546829.pdf 313 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546829-A // Magnetic recorder and reproducer // Mallina Rudolph F. // Bell Telephone Labor Inc
PDF File 2546835.pdf 4.46 MB Shaun Ewing Mar 27, 1951 00:00
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US-2546835-A // Code recording control circuit // Rippere Robert O. // Bell Telephone Labor Inc
PDF File 2546840.pdf 970 kB Shaun Ewing Mar 27, 1951 00:00
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US-2546840-A // Wave guide phase shifter // Tyrrell Warren A. // Bell Telephone Labor Inc
PDF File 2547107.pdf 684 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547107-A // Stabilized amplifier // Anderson Attell B. // Bell Telephone Labor Inc
PDF File 2547133.pdf 306 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547133-A // Wave filter // Lovell George H. // Bell Telephone Labor Inc
PDF File 2547142.pdf 531 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547142-A // Secondary emission amplifier // Shepherd William G. // Bell Telephone Labor Inc
PDF File 2547386.pdf 1.39 MB Shaun Ewing Apr 03, 1951 00:00
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US-2547386-A // Current storage device utilizing semiconductor // Gray Frank // Bell Telephone Labor Inc
PDF File 2547397.pdf 888 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547397-A // Signal sampling and modulation // Kirkpatrick William E. // Bell Telephone Labor Inc
PDF File 2547399.pdf 298 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547399-A // Winding mechanism for tight winding paper tape on spools // Leveridge Walter J. // Bell Telephone Labor Inc
PDF File 2547406.pdf 389 kB Shaun Ewing Apr 03, 1951 00:00
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US-2547406-A // Method and means for controlling the resistance of oxidic semiconductors // Morin Francis J. // Bell Telephone Labor Inc
PDF File 2547416.pdf 1.30 MB Shaun Ewing Apr 03, 1951 00:00
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US-2547416-A // Dielectric lens // Skellett Albert M. // Bell Telephone Labor Inc
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